CN2447552Y

CN2447552Y - Insert expansion screw

Info

Publication number: CN2447552Y
Application number: CN 00218659
Authority: CN
Inventors: 林富商
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-02
Filing date: 2000-08-02
Publication date: 2001-09-12
Anticipated expiration: 2010-08-02

Abstract

The utility model discloses an insertion type expansion screw, which is characterized in that two screw bodies are arranged. One expansion block is inserted into the two screw bodies. At least one hole is arranged inside the expansion block. An elastic element and a steel ball are arranged inside the hole. A groove or a hole which can contain the steel ball is arranged on the screw bodies. One tapered raised head is arranged on each screw body. The screw bodies and the expansion block become a whole by the insertion type expansion screw. In addition, the tapered raised heads are arranged on the screw bodies. Hanging force is increased. In addition, the insertion type expansion screw has the advantages of convenient operation and reliability. The insertion type expansion screw is a comparatively ideal expansion screw.

Description

The plug-in type setscrew

The utility model relates to the setscrew that is mainly used in building, the decoration.

Existing setscrew mostly comprises the screwed nail body of an end, expander and be contained in the nut of nail on the body, expander is a sleeve shape, end at sleeve is provided with several openings, the other end that is sitting in the nail body has a head of a nail, the screwed end of nail body passes sleeve, during use, nail body and expander are placed in the suitable hole, screw nut, utilize between nail body and the sleeve and the frictional force between sleeve and the hole, hang angle section or mounting article and TERRAZZO etc., this setscrew hanging force is little, on similar roof, on the ceiling board during mounting article hanging force just seem not enough, and this kind setscrew need thump in the hole of packing into the time, it is easily cracked that TERRAZZO is subjected to impact force.

The purpose of this utility model is to provide a kind of plug-in type setscrew, and it can increase the hanging force of setscrew.

The technical solution of the utility model is achieved in that the plug-in type setscrew, it mainly comprises screwed nail body, expanding block and is contained in the nut of following closely on the body, it is characterized in that: the nail body is two, in two nail bodies, insert an expanding block, in expanding block, establish a hole at least, in the hole, put elastic element and steel ball, on the nail body, be provided with the groove or the hole that can hold steel ball, on each nail body, be provided with the taper plush copper.

The utility model is owing to establish a hole at least in expanding block, in the hole, put elastic element and steel ball, be provided with the groove or the hole that can hold steel ball on the nail body, during installation nut screwed, nail body and expanding block become an integral body, and on the nail body, be provided with the taper plush copper, increased hanging force greatly, avoided TERRAZZO because of being subjected to the cracked phenomenon of impact force, easy to operate in addition, reliable, being suitable for producing in batches, is a kind of comparatively desirable setscrew.

Fig. 1 is the utility model one embodiment's a structural representation

Fig. 2 is this embodiment's a user mode schematic representation

Fig. 3 is another embodiment's of the utility model a structural representation

Fig. 4 is the another embodiment's of the utility model a structural representation

Fig. 5 is the utility model one better embodiment's a structural representation

The utility model will be further described below in conjunction with drawings and Examples.

The utility model mainly comprises screwed nail body 1, expanding block 2 and be contained in the nut 4 of nail on the body, it is different from prior art and is: setscrew one is divided into three, wherein two are the nail body, one is expanding block, the both sides of nail body 1 are the face of chamfered edge, in two nail bodies 1, insert an expanding block 2, in expanding block 2, establish a hole 3 at least, in each hole 3, put elastic element 5 and steel ball 6, on the nail body, be provided with the groove 7 or hole 8, one embodiments that can hold steel ball and in expanding block, establish two holes, in each hole, put a spring 5 and steel ball 6, one end of spring 5 touches hole wall, the other end of spring 5 touches steel ball 6, is provided with the groove 7 that can hold steel ball 6 on the relevant position of each nail body 1, is provided with taper plush copper 9 on each nail body 1, promptly be provided with screw thread, be provided with the taper plush copper at the other end place of nail body at an end place near the nail body; Another embodiment of the present utility model adopts at the two ends near expander 2 and respectively is provided with a hole 3, on the relevant position of each nail body 1, be provided with the hole 8 that can hold steel ball 6, in order to prevent that the nail body rotates together when screwing nut, one preferred embodiment has locating slot 10 on two nail bodies 1, also can have locating slot 11 on expanding block 2, mark 12 is an angle section.

Using process of the present utility model is: bored hole as required in the installation place, one end is provided with the screw thread the other end to be provided with two of taper plush copper nail bodies and to be placed in the default hole, between two nail bodies, insert the expander that spring and steel ball are housed again, when steel ball advances to nail groove of body or place, hole along with expander, under the effect of spring, be about to steel ball and spring into the location, and then nut screwed the angle section hung etc. and get final product.

Claims

1, plug-in type setscrew, it mainly comprises screwed nail body, expanding block and is contained in the nut of following closely on the body, it is characterized in that: the nail body is two, in two nail bodies, insert an expanding block, in expanding block, establish a hole at least, in the hole, put elastic element and steel ball, on the nail body, be provided with the groove or the hole that can hold steel ball, on each nail body, be provided with the taper plush copper.

2, by the described plug-in type setscrew of claim 1, it is characterized in that: put spring and steel ball in the hole of expanding block, the end face of spring can touch steel ball.

3, by claim 1 or 2 described plug-in type setscrews, it is characterized in that: on two nail bodies, have locating slot, on expanding block, also can have locating slot.